ナガオ　ミチノブ   Nagao Michinobu   長尾　充展    所属   医学部 医学科（東京女子医科大学病院）    職種   准教授
言語種別	日本語
発表タイトル	Fontan Palliation with a Biventricular Heart Has Potential Ventricular Deterioration Depending on Dominant Ventricular Characters
会議名	第81回日本循環器学会学術集会
主催者	日本循環器学会
学会区分	全国規模の学会
発表形式	ポスター掲示
講演区分	一般
発表者・共同発表者	◎椎名由美, 高橋辰徳, 長尾充展, 稲井慶
発表年月日	2017/03/17
開催地 （都市, 国名）	金沢市
学会抄録	第81回日本循環器学会学術集会　プログラム集 235
概要	Introduction: Fontan palliation is occasionally performed for the congenital anomalous heart with two ventricles that cannot be surgically separated. It remains unclear whether or not the wall motion of biventricular Fontan is similarly to that of single ventricular Fontan circulation. We assessed the wall motion and potential deterioration depending on dominant ventricular characters. Methods: Prospectively, we enrolled consecutive patients with biventricular Fontan palliation and performed CMR. We divided there patients into 2 groups: LV or RV dominant biventricular Fontan and compared global longitudinal strain (GLS), global circumferential strain (GCS), early diastolic strain rate (SR) and ventricular torsion using feature tracking. Results: 40 biventricular Fontan patients (20.6+/‒8.5 yrs) [26 patients with dominant RV and 14 patient with dominant LV]. GCS and ventricular torsion in LV dominant biventricular Fontan were better than those in RV dominant biventricular Fontan (15.7+/‒3.8% vs 13.0+/‒2.9%, 4.4+/‒2.9 º/cm vs 2.3+/‒0.86 º/cm). LV dominant biventricular Fontan showed the tendency of better GLS compared to RV dominant biventricular Fontan (15.7+/‒3.3 vs 13.2+/‒3.4, P=0.07). There was no significant difference in age, BNP, QRS duration, early diastolic peak SR, EDVi, EF or CI. Conclusions: LV dominant biventricular Fontan shows better circumferential wall motion and torsion compared to RV dominant biventricular Fontan. Biventricular Fontan palliation has potential ventricular deterioration depending on dominant ventricular characters.